Human Physiology   7/e   Vander/Sherman/Luciano
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Chapter 20: Defense Mechanisms of the Body


Critical Thinking Activities

Chapter 20: Defense Mechanisms of the Body

  1. What would happen if you injected an early female embryo of a mouse with large amounts of testosterone?

    2. Answer

  2. Besides intense physical activity, what other behaviors can you think of which might induce amenorrhea?

    3. Answer

  3. If a man has prostitis, what two major physical activities will be impaired?

    4. Answer

  4. A previously infertile couple wishes to have a pregnancy but the man produces non-motile sperm. If it were possible to fertilize one of the woman's eggs by removing a sperm nucleus and injecting it into the egg, could this procedure ever produce viable offspring? Why or why not?

    5. Answer

  5. How is it that injecting progesterone into a woman will prevent ovulation?

    6. Answer

  6. Sometimes when a baby is feeding on one breast, the other breast begins to produce milk too. Why?

    7. Answer

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